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Prevent the use of deprecated or internal functions if possible.

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The finite() function has been superseded by isfinite(). There is also
no need to use scalb(), as the exponent is also an integer value. We can
simply use scalbn().

There is also no need to use __isnanf(). The values passed are
guaranteed to be of type float, meaning we can safely use the standard
isnan().
This commit is contained in:
Ed Schouten 2015-01-07 22:07:48 +01:00
parent 7df63d456e
commit 71f60ec632
4 changed files with 7 additions and 7 deletions
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6
bsdsrc/b_exp.c
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@ -152,13 +152,13 @@ double x, c;
c= x - z*(p1+z*(p2+z*(p3+z*(p4+z*p5)))); c= x - z*(p1+z*(p2+z*(p3+z*(p4+z*p5))));
c = (x*c)/(2.0-c); c = (x*c)/(2.0-c);
return scalb(1.+(hi-(lo - c)), k); return scalbn(1.+(hi-(lo - c)), k);
} }
/* end of x > lntiny */ /* end of x > lntiny */
else else
/* exp(-big#) underflows to zero */ /* exp(-big#) underflows to zero */
if(finite(x)) return(scalb(1.0,-5000)); if(isfinite(x)) return(scalbn(1.0,-5000));
/* exp(-INF) is zero */ /* exp(-INF) is zero */
else return(0.0); else return(0.0);
@ -167,5 +167,5 @@ double x, c;
else else
/* exp(INF) is INF, exp(+big#) overflows to INF */ /* exp(INF) is INF, exp(+big#) overflows to INF */
return( finite(x) ? scalb(1.0,5000) : x); return( isfinite(x) ? scalbn(1.0,5000) : x);
} }

2
bsdsrc/b_tgamma.c
View file

@ -140,7 +140,7 @@ tgamma(x)
if (x != 0.0) if (x != 0.0)
u.a = one - tiny; /* raise inexact */ u.a = one - tiny; /* raise inexact */
return (one/x); return (one/x);
} else if (!finite(x)) } else if (!isfinite(x))
return (x - x); /* x is NaN or -Inf */ return (x - x); /* x is NaN or -Inf */
else else
return (neg_gam(x)); return (neg_gam(x));

2
src/e_scalb.c
View file

@ -35,7 +35,7 @@ __ieee754_scalb(double x, double fn)
return scalbn(x,fn); return scalbn(x,fn);
#else #else
if (isnan(x)||isnan(fn)) return x*fn; if (isnan(x)||isnan(fn)) return x*fn;
if (!finite(fn)) { if (!isfinite(fn)) {
if(fn>0.0) return x*fn; if(fn>0.0) return x*fn;
else return x/(-fn); else return x/(-fn);
} }

4
src/e_scalbf.c
View file

@ -30,8 +30,8 @@ __ieee754_scalbf(float x, float fn)
#ifdef _SCALB_INT #ifdef _SCALB_INT
return scalbnf(x,fn); return scalbnf(x,fn);
#else #else
if ((__isnanf)(x)||(__isnanf)(fn)) return x*fn; if (isnan(x)||isnan(fn)) return x*fn;
if (!finitef(fn)) { if (!isfinite(fn)) {
if(fn>(float)0.0) return x*fn; if(fn>(float)0.0) return x*fn;
else return x/(-fn); else return x/(-fn);
} }